Lake of the Woods 1 Dam is an earth dam located in Monroe County, Illinois, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 468 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Lake of the Woods 1 Dam
The primary purpose of Lake of the Woods 1 Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Willis Brand (private). It impounds the Trib Prairie Du Long Creek near Unnamed.
The dam stands 21 feet tall and stretches 468 feet across, and has a maximum storage capacity of 204 acre-feet. Completed in 1974, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 09/12/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | Monroe |
| Nearest City | Unnamed |
| River/Stream | Trib Prairie Du Long Creek |
| Coordinates | 38.29744, -90.05996 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 468 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 204 acre-ft |
| Max Storage | 204 acre-ft |
| Normal Storage | 127 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Willis Brand |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/12/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00962 |
| Federal ID | IL00962 |
| More Info | State Dam Safety Program |